Device for making duplicator master tapes



Oct. 20, 1942.

I. U. MORRIS DEVI CE FOR MAKING DUPLICATOR MASTER .TAPES Filed Nov. 14, 1940 ATTORNEYS Patented Oct. 20, 1942 DEVICE FOR MAKING DUPLICATOR MASTER TAPES Iva U. Morris, Haverford, Pa., assignor to Benjamin D. Gilbert, New York, N. Y.

Application November 14, 1940, Serial No. 365,606

Claims.

This invention relates to a device for making duplicator master tapes, and has for an object to provide means whereby master tapes may be written as by typing in an ordinary typewriter, for use in duplicating machines such as liquid or gelatine hectographic or stencil duplicating machines.

It is an object to provide a generally tubular mask of transparent or non-transparent material, such as Celluloid, Cellophane, or paper, for suitably holding that part of the tape which is to receive the impression in proper relationship to a typewriter cylinder or other platen to receive an appropriate impression thereon.

It is another object to provide such a mask which will permit writing or typing upon the face of the tape while the other side of the tape is backed by a carbon sheet, as a result of which the matter written on the face is simultaneously impressed on the rear surface in reverse, which tape may thereupon be used in a regular or special type liquid hectographic duplicating machine, to impress names and addresses on successive post cards or envelopes, for example.

Another object is to provide suitable convenient spool holding means attached to the typewriter serving to hold a supply spool and a storage spool for the tape, the latter being preferably provided with a crank handle to facilitate its rotation for advancing the tape.

Other objects of the invention will appear from the following description and the accompanying drawing which illustrates a preferred form of the invention, said drawing and description bein intended merely as illustrating and explaining the invention, and not as limitative.

In the drawing:

Fig. 1 is a perspective view of any suitable typewriting machine showing an illustrative mask in position and showing tape passing from the supply roll through the mask to the storage roll;

Fig. 2 is a perspective view of one form of mask partly unfolded to show its construction; and

Fig. 3 is a cross-section of the cylinder, carbon paper, mask, and tape, taken generally along the line 33 of Fig. 1.

In said drawing, the numeral I I indicates generally a typewriter of any standard construction provided with a platen cylinder I2 mounted upon the usual carriage shiftable transversely for letter and word spacing. I3 designates the usual paper holding fingers which may serve o hold in place the mask designated generally as [4. This mask may be made of transparent or nontransparent Celluloid, Cellophane, paper, or other suitable sheet material and may consist of the face sheet IS, the back sheet [6, and the-upwardly extending fold IT. Each of these'sheets is shown cut away to form an opening 15a, 16a, and Ila, in said parts respectively, although the opening l a in the back sheet 16 may, of course, be omitted. The master tape I8 is held in place between the back sheet 16 and the fold II, the dimensions being such that the tape 18 is readily longitudinally slidable but has only a very limited vertical movement to assure proper align ment. The opening Ilia, if used, assures that the carbon paper 19, which then preferably lies directly against the platen cylinder, is adjacent the back of the tape l8 so that when material is typed on the front face of said tape, the same characters appear on the rear side thereof in reverse.

20 indicates a supply spool supported on a holder 2i held in place by a clamp 22 attached to the side plate 23 of the typewriting machine. Similarly, 24 indicates a storage spool mounted on bracket 25 also preferably attached to the typewriting machine by a suitable clamp not shown.

In using this device, the tape I8 is passed between the back sheet l6 and the fold IT, as indicated in Fig. 2, and thereupon the entire mask I4 is put into the machine preferably by rotating the platen reversely. Thereupon, the free end is attached to the spool 24. If a liquid hectographic master tape is to be made, the carbon sheet (9 is placed in position as shown. If the stencil type of duplicating machine is to be used, the tape will consist of appropriate stencil material and no carbon sheet will be required. Thereupon, the desired data is typed upon the tape in one or more lines. This data may desirably be names and addresses, in which case this device taken together with either a standard or special duplicating machine may be used for addressing envelopes and the like.

It will be seen that the illustrative form of embodiment shown and described serves admirably to satisfy the objects enumerated above. It is intended that the patent shall cover, by suitable expression in the appended claims, all features of patentable novelty existing in the invention disclosed.

I claim:

1. In a mask for typing data in a plurality of longitudinally spaced locations upon a tape, a back sheet, a fold extending forwardly and upwardly from the bottom edge thereof, space between the fold and back sheet being such as to permit the tape to be longitudinally slidable, and a fold extending forwardly and downwardly from the upper edge thereof, said folded portions being cut away so that a portion of a tape held in place by said folded portions will be exposed to receive impressions from the typing elements of a typewriter.

2. In a mask for typing data in a plurality of longitudinally spaced locations upon a tape, a back sheet, a fold extending forwardly and upwardly from the bottom edge thereof, and a fold extending forwardly and downwardly from the upper edge thereof, said back sheet and fol ed portions being cut away so that a portion of ;a tape held in place by said folded portions will be exposed to receive impressions from both the front and rear.

3. In a mask for typing data in a plurality of longitudinally spaced locations upon a tape, a back sheet, a fold extending forwardly and upwardly from the bottom edge thereof, the space between the fold and back sheet being such as to permit the tape to be longitudinally slidable, and a fold extending forwardly and downwardly from the upper edge thereof, said folded portions be ing cut away so that a portion of a tape held in place by said folded portions will be exposed to receive impressions from the typing elements of a typewriter, said forwardly and downwardly extending fold extending downwardly below the back sheet and the other fold so that it may be gripped between the platen and presser rollers of a standard typewriter.

4. In a mask for typewriting data in a plurality of longitudinally spaced locations upon a tape, a flat tube formed of suitable sheet material having an inside Width only slightly greater than the width of the tape and having at least its front side apertured to permit typewriting therethrough upon the tape, said mask being formed with a portion extending downwardly from the tape receiving tubular portion which remains gripped by the typewriter while the tape receiving portion is not gripped.

5. In a mask for typewriting data in a plurality of longitudinally spaced locations upon a tape, a flat tube formed of suitable sheet material having an inside width only slightly greater than the width of the tape and having its front side apertured to permit typewriting therethrough upon the tape and having its back side apertured to permit the application to the tape of carbon paper to the back face of the tape to cause matter typewritten upon the face of the tape to appear in reverse upon the back of the tape.

IVA U. MORRIS. 

